雨水生物滞留系统控制径流污染物研究进展

Research progress on contaminants removal from stormwater runoff by bioretention

雨水生物滞留系统作为《海绵城市建设技术指南》中推荐优先利用的技术措施,能够从源头上削减雨洪径流量和净化水质,达到降雨时吸水、蓄水、渗水、净水的目的。为促进该技术的推广运用,分析了生物滞留系统的结构及水文特性,重点总结了生物滞留系统去除径流污染物的研究现状,针对生物滞留系统对氮、磷等污染物去除效果较差的问题,论述了优化改进生物滞留系统的技术措施,为该技术的进一步研究和应用提供借鉴和参考。

Bioretention,one of the recommended technical measures in Eco-sponge City construction guidelines,can reduce stormwater runoff volume and achieve excellent removal of contaminants at the source. The structure and hydrological characteristics of a bioretention system were comprehensively analyzed,and the performance of bioretention in removing pollutants from stormwater was summarized,with a particular focus on promoting the application of bioretention technology. Measures to improve and optimize bioretention functions were also discussed,addressing the problem of unstable removal efficacy for nitrogen and phosphorus. Further research needs were also proposed to encourage the design and application of bioretention systems.